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-rw-r--r--sysoptions.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/sysoptions.h b/sysoptions.h
index b081ffc..ba4b4ca 100644
--- a/sysoptions.h
+++ b/sysoptions.h
@@ -99,6 +99,23 @@
#define MAX_MAC_LEN 20
#endif
+/* sha2-512 is not necessary unless unforseen problems arise with sha2-256 */
+#ifndef DROPBEAR_SHA2_512_HMAC
+#define DROPBEAR_SHA2_512_HMAC 0
+#endif
+
+/* might be needed for compatibility with very old implementations */
+#ifndef DROPBEAR_MD5_HMAC
+#define DROPBEAR_MD5_HMAC 0
+#endif
+
+/* Twofish counter mode is disabled by default because it
+has not been tested for interoperability with other SSH implementations.
+If you test it please contact the Dropbear author */
+#ifndef DROPBEAR_TWOFISH_CTR
+#define DROPBEAR_TWOFISH_CTR 0
+#endif
+
#define DROPBEAR_ECC ((DROPBEAR_ECDH) || (DROPBEAR_ECDSA))